What issue is typically caused by worn pickup rollers?

Worn pickup rollers primarily contribute to issues with paper feeding in printers. These rollers are responsible for grabbing the paper from the tray and feeding it into the printing mechanism. When the rollers become worn or dirty, they lose their grip and may not be able to pick up the paper effectively. This can result in paper jams, multiple sheets being fed at once, or no paper being fed at all, causing significant disruptions in the printing process.

The other options involve different components or issues unrelated to the function of pickup rollers. Grinding noises typically suggest mechanical problems or issues with the printer's gears, while output errors and delayed print jobs could arise from software or network issues rather than mechanical wear. Understanding the specific role of pickup rollers helps in diagnosing printer problems accurately.